Ulesambutela Izimo. 2. Albasnso el abadiboli bahamba amo-1 250 km. umshoyeli. A uhambe amo-759 km. Mongakonani ama-km athanjwe umshoyel: 89 Bhala impendulo yakho ngama-km. 1,400 mm ubude, Lide kangakanani itatula. ikababa kunelami? Bhala impendulo yakho ngama- cm nama mm kanye nama-m.

$$\text{Remaining} = 50 \text{ m} - 1.5 \text{ m}$$ $$\text{Remaining} = 48.5 \text{ m}$$

The remaining length is $\boxed{\text{48.5 m}}$.

:
The problem describes two drivers. Based on the handwritten total distance of 1009 km and Driver A's distance of 759 km, we will find the distance traveled by Driver B.

$$\text{Driver B's distance} = \text{Total distance} - \text{Driver A's distance}$$ $$\text{Driver B's distance} = 1009 \text{ km} - 759 \text{ km}$$ $$\text{Driver B's distance} = 250 \text{ km}$$

Driver B traveled $\boxed{\text{250 km}}$.

:
The problem asks for the difference in length between your father's ruler and yours, and to express the answer in cm and m.

$$\text{Difference} = \text{Father's ruler length} - \text{My ruler length}$$ $$\text{Difference} = 1400 \text{ mm} - 1200 \text{ mm}$$ $$\text{Difference} = 200 \text{ mm}$$

Since $1 \text{ cm} = 10 \text{ mm}$, divide the difference by 10.

$$\text{Difference in cm} = \frac{200 \text{ mm}}{10 \text{ mm/cm}}$$ $$\text{Difference in cm} = 20 \text{ cm}$$

Since $1 \text{ m} = 1000 \text{ mm}$, divide the difference by 1000.

$$\text{Difference in m} = \frac{200 \text{ mm}}{1000 \text{ mm/m}}$$ $$\text{Difference in m} = 0.2 \text{ m}$$

The difference in length is $\boxed{\text{20 cm}}$ or $\boxed{\text{0.2 m}}$.